GNU LilyPond was created in 1996.
To convert a musical score created in LilyPond to a MIDI file, you can use a software tool called "LilyPondTool." This tool allows you to export your LilyPond file as a MIDI file, which can then be played on various devices or software that support MIDI playback.
GNU nano was created in 1999.
GNU Oleo was created in 1992.
Gnu High was created in 1976.
GNU Octave was created in 1988.
GNU Screen was created in 1987.
GNU Manifesto was created in 1985.
GNU readline was created in 1989.
GNU Gatekeeper was created in 1999.
GNU Debugger was created in 1986.
GNU IceCat was created in 2006-09.
Singapore GNU Group was created in 2006.